The data or conclusions that result from careful experimentation can be described as
subjective
workable
hypothetical
empirical

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

Which change to the system wood cause the freely-moving piston to lower?